Printing cylinder for rotary presses



vlllll Swan Smfi'h affozncws 5. SMITH PRINTING CYLINDER FOR ROTARY PRESSES Filed March 13. 1926 Nov. 8, 1927.

Patented Nov. 8, 1927.

STATES semen SWAN SMITH, O F. WHITE BEAR, MINNESOTA, A55SIGNOR 015v THREE-EIGHTHS. TO PAULINE B. WARNER AND'TI-IREE-EIGHTHS TOHMAR'I'INe BOHLIG,;'BOTH,- OF

ism. P irL, miNNEsoTA;

,- PRINTING CYLINDER Fort e tran? lm s srzs.

Application ,filed. March l a, r1926. ,$eria1 No )f1,466. ir yention relates to printing cylinders ing"cylinder I have illustrated a segrgehtal fer retary fpresses and hasfor itsj objectto shaped ty pe plat lj Badapted to befmpuiited .,pr vide, a printing cyliridermemhpdylng onand'eeeured to said eylii der in aeeerd- 55 aridl effective attaching means for ndenting andlholding (me .Or vmore type plates upOnlthep rinting cylinder.

r Anether object I resides ,in providing tapered held-er l. fings U with beveled lfaces adapted; td engage 1 the beveled ci r,c.ru mfere tial edges of a .plate, saidringsbeipg, slit ti ed; hat Ske t er lo k i ie' wh e serve, tomlamp the holder rings in place pon the eyliiider.

A still Miurther obj ect iof the. inyentiori re- .asides" iii :fQlim hg the cylinder: with eir cumiffereiitial" I g ro byes 1 land I in dprovidi ig abutme'nts meya-ble ialohg said .g 'oeves and fdrmedwith beveled,faces adapted to engage l gahutmentdbeing split and hav ng a screwthe hl ankspaces fitted. heret the. beveled ledges of ithe etyp e eplate, each for locking the lsame against yieiwwhiehwill appear in the followi igfde- I A Lfeature, pi the invention residesintermiiig the holder rings with flanges Whichserve aebearers. e I

"TQWith.; the'foregoing and other vohjeets 1n ,scription, the inventio i resides ii the novel epm'bmatien and arrangement, ofpartsand l scr bed and ela med. I e

. L Ii the draw ngs, Fig.- 11s, a perspective wyiewef, a

the; details of eenstruetion hereinafter de- ,printing cylinder embedyi ig i ny ance with ,mylinvention.

"1 The cylinder A is v Y smooth througheut its lengthand of unifqrlit diameter exeept for t a .riumber of eire ir ierential gr jqves .113 which ,are S uat d. inwardly; from th eeds [0t ,S Egld vcylinder. leaving blank pertiQIi S, Q14

and 'l atz the ,ends of the-cylinder; aiid gimi- It groqves 13. flhetype Qlatebest. vs1iitedt0 i-the, present form of my j i yefitioiilRiddenstr icted V with ]0eveled cireumferehtial.,.edges 19; and a dibey eled lei gitudiiialfedgesf21 I ar d. 22 andaisi pqsitienedlwith Qthell edges 19 h and 20 sit ated on any, ofthel lehkgpiiees l4, 155:16,17, 17f1or18.) The edges 1Q ai1d 20 of the illustrated type plate-B ltions of the cylinder end 'engagiiig theedges 19 and 20 o'f saidtype ,--p1 atej;are p dsitigiied I type plate -inodhted ipn th i ylinder.

- ripg QSl Qmprisihg a sleeye 24: ii te gralfisiith fl nge 2 7 issui g I w i i yr t e efiti The holder ringee ishQredfitfQfi t q fit, elosely ellpoii the ciYlin deigAQzthd is a.

. Humb rtf u li sli s' 27 which eiten d through the; flai geJQS and into sleeve; 24

giilmgst er tirely thefethre ighgleavi ig bridge portions 28 holding the ringg. ,23 ,together.

invention; .e The s1eey'e24is tapered, exter ally'endf is 35 i Fig. 2 is a sectional iew taken ,en line externally threaded at 29 up tejthe'fla'nget25.

; 2-2 of. Fig. 1.

Fig. is a detailsectional view through erie or the ahutmeiits taken ,onf line'. 3+3

pf Fig. 1 .and drawn to an enlarged scale.

. fFigQ ifis a cross se ti0 11al view of the holderlriiig and lock ring takeI pI line hwith trun' iionsll and 12011 which said cyl- ,indeiy may'lbe i gl nted, for rotat on; (construction ot printing ojfi F ig. 1 ,ail'd drawn. toaneiilargedscale. II EOI: the ,Ipurpose 'oif 'illustratingfthe aprplieatiori bf rny inyentio n, I have shown in the drawings a printing cyli njderQA formed cylinders and their ,relationipprinting presses being yvellknown the, art thas. not been thought necessary to illustrate in detail a complete rotary print h If desiredfsaid lock ring ay; be knurled as indicated 1 at .321 to permit 3 of readily screwing it upon'sleeve 24 and ihay .havesockets33 fermedtherei a; H engaged by a "spanner, Witench, o permit; of lig tly scr ewiiig s aid lOek ;I. i g ,uppnfthe I s1eeve24. Thefian ge 25 oteaclrlmlder ring in ie r e e eeni n t with th s. p i -il i e-if m e lt l j l ei le ew; 3 Wh ptedfto be 60", ingpress.

engages one of the beveled. edges of the type plate 13. When lock ring 30 is tightly screwed upon the holder ring 23' said holder ring is clamped upon cylinder A so as to securely hold type plate B mounted thereon.-

To preventtype plateB from moving circumferentially around the cylinder a num-' ber of abutments C are employed which are mounted in the grooves 13. These grooves are preferably dovetailedbeing enlarged at the bottom or the same may be formed in any other suitable manner. Each of the abutments C has a lug 85 adaptedto be re \ceived bylany of the grooves 13 said lug be- V ingenlarged at its base to fit thewa'lls of a groove. Along one end of the abutment,

which extends outwardly beyond the surface Y of cylinder A, said abutmentis formed with [a beveled face 36 which may engage eitherof formed in abutment, G, the same being fthreaded to recelve a shortitapered screw 39. The axis of this hole 38 is situated Q la long the slit l0 so that as the screw 39 is screwedinto hole 38 the lug is spread ancl"lockecli11 groove 13 so asto hold plate 7 B in position onthecylinder, 'Ihe lug 35 of:

abutment C may be insertedinto any of the.

5 grooves 13 throughentry recesses all formed therein. If desired,the abutmentsfC may be split int'ohalves instead of being merely slit. Andwhile such splitting of s'aid abut- Tmjents makes forv additional loose parts, it ioflwillbe obvious a tighter grip, between abutment and cylinder is madepossible. If

- desiredseveral type plates may be mountfl ed on one cylinder. I lVhen' narrow type jplatejs'iarensed the abutmentsfC areinsert ed into'the inner grooves 13 and the ends UhOl ding deVices Djuponthe blank spaces 16,

Qdof holder rings23, in ad- 5o dition to engaging the edges of typerplate I; B for holding the same in place upon the cylinderare constructed with the peripheral surface d3 thereof disposedoutwardlyof the lock ring 30 and the body ofthe type plate B so asto lie flush with the faoe of the type i onjsaid typ plate. In this manner these.-

surfaces 43' serve as bearers forengaging the 7 paper tofeed and hold t in proper position on'the impression cylinder of aQprinttes maybe quickly mounted and held upon or removed fromany improved printing cylinder; Mounted on the} print Typ P throughout their circumferential edges and at selected intervals along their longitudinal edges. Said plates may be adjusted both longitudinally and circumferentially on the printing cylinder so as tobring the same,

with little effort, in the proper position.

Changes in the specificformof my invention, asherein disclosed, may be made with in the scope of whatis'claimedwithout de parting from the spirit of my invention.

Having describedmy invention, what I claim as new and desire to protect by Letters Patentis':*

he 71.1111 combination, a plate carrying cylinder a holder ring slidably fitted on saidcylinder and adapted to engagea type plate thereon, and a lock ring fitted on said holder ring co-operating therewith to clamp the same about said cylinder to hold it: inengagement withsaid type plate. V

2.111 combination, aplate rcarryingcylinder having a circumferential groove, an

abutment movable within said groove having a beveled edge adapted to engage the beveled edge of a type plate, and'means forclaniping said abutment inposition within said groove.

In combination, a plate carrying cylinder, a pair of holders movable longitudinally relative thereto for engaging the circumferentialedges of a type plate, means forlock lng said holders in 'POSllJlOIl upon said cylinrelativef to said cylinder and supported tion.

,4. In combination. ple er c rr iiig' cylin "der, a; holder ring movablelongitudinally thereoncompr sing a tapered sleeve and a flange formed with a beveled face adapted to engage thebeveled edgeofa type; late,

the peripheral surface of said flange, eing disposd to form a bea'rer,thjreads formed on said sleeve, said flange and'aportion of said "of saidtype plates are arranged with the sleeve being slit, and a lock ring threaded upon saidtapered. sleeve to causethe same to clamp upon said cylinder; f q

I 5. In combination, a plate carrying cyllnder of a rotary press, a holder r1ngmovable longitudinally on't he cylinder and coin ring in place upon said cylinder. p

6. In combinatlon, a plateloarry ngcylin der having a circumferential groove enlarged at the bottom, an abutment: having a"lug formed with an enlarged base movable along said groove, said abutmentprojectingabove ing cylinder, the type plates are/supported I the surface of said cylinder and having a beveled face adapted to engage the edge of a upon said, sleeve for 'clamping s'aidholder g type plate, and means for locking said abutment in said groove against movement along the same. i

7. In combination, a plate carrying cylinder, an annular holding member slidably fitted thereon and adapted to engage the edge of a type plate on said cylinder, and means carried by said member for clamping the same to said cylinder in selected p0si 19 tions thereon.

8. In combination, a plate carrying cylinder having a groove therein, an abutment slidably fitted Within said groove and adapted to engage the edgeof a type plate on said cylinder, and means carried by the abutment for clamping the same to the cylinder Within said groove.

In testimony whereof, I have signed my name to this specification.

SWAN SMITH. 

